1
bottomless pit(noun, expression, misery, grave, inferno)
1
brown study
1
bubble(noun, desire, fancy, idea, impression)
1
bug bear(expression, idiom, fear)
1
cacodemon
1
calamity(trouble, torment, trial, suffering)
1
calvary(noun, trouble, bother, blow, distress)
1
care(noun, trouble, bother, blow, distress)
1
castle in the air(noun, expression, idiom, desire, fancy)
1
clawing
1
clog
1
colic
1
conceiving(noun, desire, fancy, hope, image)
1
conception(noun, concept, understanding, desire, view)
1
concern(noun, distress, anxiety, horror, dread)
1
conflict(noun, torment)
1
convulsion
1
cramp
1
creativity(noun, desire, fancy, hope, image)
1
crick
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APASmart Define. (2016). nightmare thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nightmare/thesaurus/synonyms
ChicagoSmart Define. 2016. "nightmare thesaurus" https://smartdefine.org/nightmare/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, nightmare thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nightmare/thesaurus/synonyms>.
MLASmart Define. "nightmare thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/nightmare/thesaurus/synonyms>